init

.gitignore

@@ -30,3 +30,6 @@ go.work.sum
 # Editor/IDE
 # .idea/
 # .vscode/
+
+/dist.zip
+.DS_Store

README.md

@@ -0,0 +1,17 @@
+# go-web-wrapper
+A simple template that wrap your static website into an executable file.
+
+## Quick Start
+1. Place `dist.zip` at project root dir (include all your website files like index.html, etc.).
+2. Build project.
+    - Windows
+        ```bash
+        GOOS=windows GOARCH=amd64 go build -ldflags "-s -w -H=windowsgui" -trimpath -o web.exe
+        ```
+    - Unix-Like
+        ```bash
+        # MacOS ARM
+        GOOS=darwin GOARCH=arm64 go build -ldflags "-s -w" -trimpath -o web_darwin_arm64
+        # Linux AMD64
+        GOOS=linux GOARCH=amd64 go build -ldflags "-s -w" -trimpath -o web_linux_amd64
+        ```

config.go

@@ -0,0 +1,6 @@
+package main
+
+const (
+	Endpoint    = "127.0.0.1:8381"
+	WindowTitle = "预览" // for windows only
+)

dist.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"archive/zip"
+	"bytes"
+	_ "embed"
+	"fmt"
+	"io/fs"
+	"net/http"
+)
+
+//go:embed dist.zip
+var distzipbytes []byte
+
+var distribution = func() http.FileSystem {
+	distzip, err := zip.NewReader(bytes.NewReader(distzipbytes), int64(len(distzipbytes)))
+	if err != nil {
+		panic(err)
+	}
+	return http.FS(fs.FS(distzip))
+}()
+
+func init() {
+	http.Handle("/", http.FileServer(distribution)) // frontend
+
+	go func() {
+		fmt.Println("server quit for", http.ListenAndServe(Endpoint, nil))
+	}()
+
+	fmt.Println("正在展示:", Endpoint)
+}

go.mod

@@ -0,0 +1,3 @@
+module go-web-wrapper
+
+go 1.20

main_unix.go

@@ -0,0 +1,30 @@
+//go:build unix
+
+package main
+
+import (
+	"errors"
+	"os/exec"
+	"runtime"
+)
+
+func openBrowser(url string) error {
+	var cmd string
+	switch runtime.GOOS {
+	case "darwin":
+		cmd = "open"
+	case "linux":
+		cmd = "xdg-open"
+	default:
+		return errors.New("unsupported platform")
+	}
+	return exec.Command(cmd, url).Start()
+}
+
+func main() {
+	err := openBrowser("http://" + Endpoint)
+	if err != nil {
+		panic(err)
+	}
+	select {}
+}

main_windows.go

@@ -0,0 +1,261 @@
+//go:build windows
+
+package main
+
+import (
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+func main() {
+	runtime.LockOSThread()
+
+	// ① 隐藏控制台窗口（如果存在）
+	hConsole, _, _ := procGetConsoleWindow.Call()
+	if hConsole != 0 {
+		procShowWindow.Call(hConsole, SW_HIDE)
+	}
+
+	// ② 获取当前模块句柄
+	hInstance, _, _ = procGetModuleHandleW.Call(0)
+
+	// ③ 注册窗口类
+	className := syscall.StringToUTF16Ptr("MyWindowClass")
+	wndClass := WNDCLASSEX{
+		CbSize:      uint32(unsafe.Sizeof(WNDCLASSEX{})),
+		Style:       0,
+		LpfnWndProc: syscall.NewCallback(WndProc),
+		CbClsExtra:  0,
+		CbWndExtra:  0,
+		HInstance:   hInstance,
+		HIcon:       0,
+		HCursor:     0,
+		// 背景色使用 COLOR_WINDOW+1（6）
+		HbrBackground: uintptr(6),
+		LpszMenuName:  nil,
+		LpszClassName: className,
+		HIconSm:       0,
+	}
+
+	ret, _, err := procRegisterClassExW.Call(uintptr(unsafe.Pointer(&wndClass)))
+	if ret == 0 {
+		panic("RegisterClassExW failed: " + err.Error())
+	}
+
+	// ④ 创建窗口
+	windowTitle := syscall.StringToUTF16Ptr(WindowTitle)
+	hWnd, _, err := procCreateWindowExW.Call(
+		0,
+		uintptr(unsafe.Pointer(className)),
+		uintptr(unsafe.Pointer(windowTitle)),
+		WS_OVERLAPPEDWINDOW&^WS_THICKFRAME, // 移除 WS_THICKFRAME 样式
+		100, 100, 400, 150,                 // 窗口位置和大小
+		0, 0,
+		hInstance,
+		0,
+	)
+	if hWnd == 0 {
+		panic("CreateWindowExW failed: " + err.Error())
+	}
+
+	// ⑤ 创建控件：文本框和按钮
+	createControls(hWnd)
+
+	// 显示并更新窗口
+	procShowWindow.Call(hWnd, SW_SHOW)
+	procUpdateWindow.Call(hWnd)
+
+	// ⑥ 消息循环
+	var msg MSG
+	for {
+		ret, _, _ := procGetMessageW.Call(uintptr(unsafe.Pointer(&msg)), 0, 0, 0)
+		if ret == 0 { // 收到 WM_QUIT 消息
+			break
+		}
+		procDispatchMessageW.Call(uintptr(unsafe.Pointer(&msg)))
+	}
+}
+
+func createControls(parent uintptr) {
+	// 创建宋体字体
+	font := createFont("宋体")
+
+	// 创建一个不可编辑的文本框，显示 "正在展示"
+	editClass := syscall.StringToUTF16Ptr("EDIT")
+	text := syscall.StringToUTF16Ptr("正在展示: " + Endpoint)
+	editHWnd, _, _ := procCreateWindowExW.Call(
+		0,
+		uintptr(unsafe.Pointer(editClass)),
+		uintptr(unsafe.Pointer(text)),
+		uintptr(WS_CHILD|WS_VISIBLE|ES_CENTER),
+		10, 20, 370, 40,
+		parent,
+		0,
+		hInstance,
+		0,
+	)
+	// 设置宋体字体
+	procSendMessageW.Call(editHWnd, WM_SETFONT, font, 1)
+
+	// 创建按钮控件，显示“按钮”，并指定控制 ID 为 ID_BUTTON_OPEN
+	buttonClass := syscall.StringToUTF16Ptr("BUTTON")
+	buttonText := syscall.StringToUTF16Ptr("打开页面")
+	buttonHWnd, _, _ := procCreateWindowExW.Call(
+		0,
+		uintptr(unsafe.Pointer(buttonClass)),
+		uintptr(unsafe.Pointer(buttonText)),
+		uintptr(WS_CHILD|WS_VISIBLE|BS_DEFPUSHBUTTON),
+		10, 70, 365, 30,
+		parent,
+		uintptr(ID_BUTTON_OPEN), // 这里设置按钮的ID
+		hInstance,
+		0,
+	)
+	// 设置宋体字体
+	procSendMessageW.Call(buttonHWnd, WM_SETFONT, font, 1)
+}
+
+// 窗口和控件样式、消息常量
+const (
+	WS_OVERLAPPEDWINDOW = 0x00CF0000 // 标准窗口样式（包含标题栏、系统菜单、可调整大小等）
+	WS_CHILD            = 0x40000000 // 子窗口样式
+	WS_VISIBLE          = 0x10000000 // 可见样式
+	WS_BORDER           = 0x00800000 // 边框样式
+	WS_CAPTION          = 0x00C00000 // 标题栏样式
+	WS_SYSMENU          = 0x00080000 // 系统菜单样式
+	WS_THICKFRAME       = 0x00040000 // 可调整大小的边框样式
+
+	BS_DEFPUSHBUTTON = 0x00000001 // 默认按钮样式
+
+	ES_CENTER = 0x00000001
+
+	SW_HIDE = 0
+	SW_SHOW = 5
+
+	WM_DESTROY = 0x0002
+	WM_COMMAND = 0x0111
+	WM_SETFONT = 0x0030
+)
+
+const (
+	// 定义一个退出按钮的ID
+	ID_BUTTON_OPEN = 1001
+)
+
+// 结构体定义，与 WIN32 相同
+type POINT struct {
+	X int32
+	Y int32
+}
+
+type MSG struct {
+	Hwnd    uintptr
+	Message uint32
+	WParam  uintptr
+	LParam  uintptr
+	Time    uint32
+	Pt      POINT
+}
+
+type WNDCLASSEX struct {
+	CbSize        uint32
+	Style         uint32
+	LpfnWndProc   uintptr
+	CbClsExtra    int32
+	CbWndExtra    int32
+	HInstance     uintptr
+	HIcon         uintptr
+	HCursor       uintptr
+	HbrBackground uintptr
+	LpszMenuName  *uint16
+	LpszClassName *uint16
+	HIconSm       uintptr
+}
+
+var (
+	// 加载 DLL
+	user32   = syscall.NewLazyDLL("user32.dll")
+	kernel32 = syscall.NewLazyDLL("kernel32.dll")
+	shell32  = syscall.NewLazyDLL("shell32.dll")
+	gdi32    = syscall.NewLazyDLL("gdi32.dll")
+
+	// 接口函数
+	procDefWindowProcW   = user32.NewProc("DefWindowProcW")
+	procDispatchMessageW = user32.NewProc("DispatchMessageW")
+	procGetMessageW      = user32.NewProc("GetMessageW")
+	procRegisterClassExW = user32.NewProc("RegisterClassExW")
+	procCreateWindowExW  = user32.NewProc("CreateWindowExW")
+	procShowWindow       = user32.NewProc("ShowWindow")
+	procUpdateWindow     = user32.NewProc("UpdateWindow")
+	procPostQuitMessage  = user32.NewProc("PostQuitMessage")
+	procSendMessageW     = user32.NewProc("SendMessageW")
+
+	procGetModuleHandleW = kernel32.NewProc("GetModuleHandleW")
+	procGetConsoleWindow = kernel32.NewProc("GetConsoleWindow")
+
+	shellExecute = shell32.NewProc("ShellExecuteW")
+
+	procCreateFontIndirectW = gdi32.NewProc("CreateFontIndirectW")
+)
+
+var hInstance uintptr
+
+// 窗口过程函数，处理窗口消息
+func WndProc(hWnd uintptr, msg uint32, wParam, lParam uintptr) uintptr {
+	switch msg {
+	case WM_COMMAND:
+		// 当点击控件时，wParam 的低 16 位为控件 ID
+		if uint16(wParam) == ID_BUTTON_OPEN {
+			// 调用 ShellExecuteW 打开默认浏览器
+			// 第一个参数为 0 表示没有窗口句柄，最后一个参数指定需要打开的 URL
+			url := "http://" + Endpoint
+			shellExecute.Call(0,
+				uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr("open"))),
+				uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(url))),
+				0,
+				0,
+				1) // 1 表示普通窗口打开
+			return 0
+		}
+	case WM_DESTROY:
+		procPostQuitMessage.Call(0)
+		return 0
+	default:
+		ret, _, _ := procDefWindowProcW.Call(hWnd, uintptr(msg), wParam, lParam)
+		return ret
+	}
+	return 0
+}
+
+// 创建指定字体（如宋体）
+func createFont(fontName string) uintptr {
+	font := &struct {
+		Height         int32
+		Width          int32
+		Escapement     int32
+		Orientation    int32
+		Weight         int32
+		Italic         byte
+		Underline      byte
+		StrikeOut      byte
+		CharSet        byte
+		OutPrecision   byte
+		ClipPrecision  byte
+		Quality        byte
+		PitchAndFamily byte
+		FaceName       [32]uint16
+	}{}
+
+	font.Height = 20           // 字体高度
+	font.Weight = 800          // 字体粗细
+	font.CharSet = 1           // 默认字符集
+	font.OutPrecision = 4      // 输出精度
+	font.ClipPrecision = 2     // 裁剪精度
+	font.Quality = 1           // 质量
+	font.PitchAndFamily = 0x31 // 字体类型
+	copy(font.FaceName[:], syscall.StringToUTF16(fontName))
+
+	hFont, _, _ := procCreateFontIndirectW.Call(uintptr(unsafe.Pointer(font)))
+	return hFont
+}